Table of Contents ON-BOARD MONITOR AND NAVIGATION SYSTEMS

Subject Page

On-Board Monitor. 2 On-Board Monitor System Introduction.2 Components, Locations and Removal Information.4 On-Board Monitor and Navigation system interfaces.7 On-Board Monitor Controls and Indicators.8 Screen Samples of the On-Board Monitor Functions.11 Wide Screen Board Monitor. 15 Introduction.16 Component Overview.17 Principle of Operation.20 Workshop Hints.20 Mark I Navigation System. 23 Global Positioning System (GPS).24 Navigation System Inputs.27 Mark I Navigation System Operation.30 Mark I Navigation System Calibration Overview.35 Vehicle Owner Calibration.35 Dealership Calibration Procedures.38 Mark I Navigation System Software Loading.50 Mark I Diagnosis and Troubleshooting.51 Mark II Navigation System.53 Mark II Navigation System Introduction/ Component Locations.54 On-Board Monitor and Mark II Navigation System Interface.58 Mark II Navigation Diagnosis Mode Displays.60 Mark II System Calibration.63 Mark II System Diagnosis.63 Mark III Navigation System.64 Purpose of the System.65 System Components.66 Workshop Hints.72 Review Questions. 77
ON-BOARD MONITOR SYSTEM Model: E38, E39, E53, E46 Production Date: Eto 2002, all others 1997 to 2001.
Objectives After completing this module you should be able to: Describe the controls possible from the On-Board Monitor. Explain the purpose of the ARCNET. Know how to operate the various features controlled from the On-Board Monitor.
On-Board Monitor and Navigation Systems

ON-BOARD MONITOR SYSTEM

The On-board Monitor System was introduced as optional equipment on the 1997 MY E38s and E39s. It was made standard on the E38 750iL for 1999 and standard for all E38s in 2000. It uses the latest advances in electronic technology to bring new levels of comfort and convenience to the driver and passengers for control of the audio/communication systems. In addition the Mark I Navigation system is incorporated into the total scope of On-board Monitor Control. NOTE: The E39 six cylinder models with the On-board Monitor option are equipped with the high version IKE and On Board Computer functions. The On-board Monitor is essentially a control and display unit. All data processing and calculations are carried out by the individual system control modules. The display data is sent to the On-board Monitor over the various interfaces. The On-board Monitor is mounted in the center dash console. It replaces the Radio/Tape Player, MID and DSP control panel (E38) if equipped. It consists of control knobs and buttons for programming and operating the various systems. There is a 5 1/4 inch, color LCD screen for display of all system functions. The tape player drive is also part of the On-Board Monitor unit. However, the radio receiver/amplifier module is now mounted in the trunk. The audio system is controlled from the on-board monitor. Additionally, the systems controlled and programmed through the On-board Monitor include: On Board Computer Navigation system Telephone Code Function Set (on-board monitor setup) Television (Early production only) Digital Sound Processor (DSP) Auxiliary Ventilation Emergency (provides vehicle location and automatically dials telephone for help). Monitor Off (Switches the monitor off). 3

Toggles the audio display in the monitor back to the previous screen. Amber LED illuminated when radio is on.
Arrow rocker switch. Adjusts the tone settings and is used for the seek/scan function for the radio, tape and CD track. TONE-SELECT Tone: Adjusts the bass, treble, balance and fader using the tone & arrow buttons. Select: provides choice of station selection method, ie: Manual, Scan, Scan Sensitivity.
TELEPHONE BUTTON AND INDICATORS
Send/End button. As on previous systems this button sends the call to the displayed telephone number in the On-Board Monitor display or ends the current call. The telephone LEDs correspond to the E38/E39 MID: Green = Phone call in progress Red = Phone is on Amber = Steady: Roaming in same type system as home system Flashing: Roaming in different type system as home system
Fan Symbol: Flashing indicates the park car ventilation system is programmed for activation. Steady indicates the parked car ventilation is currently on. Clock Button: Displays the time with the key switched OFF. Additionally, this button also switches the parked car ventilation system to off when it is on.

ON SCREEN CONTROLS

MENU BUTTON The menu button is used to call up the Main Menu as shown at right. This Menu provides access to all of the OnBoard Monitor functions including:
There are two main controls for all of the monitor screen displays.
ROTARY KNOB PUSH = Switches the monitor on or activates the selected program displayed in the monitor. ROTATE = Selects the desired function for programming or display

CHECK ENGINE

A BS/ SC A
SCREEN SAMPLES OF THE ON-BOARD MONITOR FUNCTIONS
ON BOARD COMPUTER The functions of the On Board Computer remain the same as previous systems. All On Board Computer calculations are still performed by the IKE. The OBC is called up from the Onboard Monitor main menu by highlighting the BC and pressing the knob. Once the computer functions are displayed, all programming and resetting of the displays is carried out using the rotary knob.
MARK I GPS NAVIGATION The on-board monitor provides access to the new Navigation system. The Mark I Navigation system is controlled and displayed via the onboard monitor.
TELEPHONE Selecting the Telephone function on the Monitor screen will call up a rotary dial display. The telephone can be dialed with the rotary knob by turning the knob and pressing it when the desired digit is highlighted. Once the number is input, the call is initiated by pressing the send/end button at the left of the Monitor. All telephone programming is carried out through the handset as on other telephone models. Other features of the telephone control include: monitor

Component Overview

The wide screen on-board monitor consists of: 1. Monitor housing with cassette drive 2. Display screen 3. On-board monitor control panel
Cassette Drive The cassette drive is located behind the on-board monitor screen. In order to access the cassette, press the eject button, the display screen tilts forward to uncover the cassette slot. The images will remain displayed on the screen. After pressing the eject button again or automatically after 15 seconds the display returns to its normal position (cassette must be completely inside or removed). The tilt mechanism for the display screen utilizes anti-trap, if the board monitor detects a sudden change in speed, the display will reverse direction.
Display Screen and Control Panel The display screen has a diagonal width of 6.5 and an aspect ratio of 16:9 compared to the previous monitors that had a ratio of 4:3. The new screen also uses a Ad-TFT display (Advanced Thin Film Transistor). This type of screen uses ambient light in addition to backlighting in order to illuminate the display. The advantage is a constant contrast and brightness level at all ambient lighting conditions. 6.5 INCH DISPLAY

16:9 ASPECT RATIO

INFO 3 FM MODE 6 AM
On-board computer DSP Code Emergency Monitor off
GPS-Navigation Aux. Ventilation

TONE SELECT

11.13.2000 Thursday
PHOTOCELL SENSOR ON-BOARD MONITOR CONTROL RADIO CONTROL KNOB KNOB RADIO STATUS LED = Signal from radio via I/K bus. AUXILIARY FAN INDICATOR LED
INFO = Activates the soft key menu for RDS and PTY
1-6 BUTTONS = Audio presets and CD selection
AM/FM SELECTION MODE/DISPLAY = Mode selects between audio functions. Display alternates between radio display and other displays. BC,TEL,NAV etc.
TELEPHONE STATUS LEDs / EJECT = Tilts monitor to access cassette drive. TELEPHONE = Send/End button TAPE REVERSE/CLOCK = Clock: Pressing with key off displays time. Aux. ventilation can be switched by holding button longer. TONE/SELECT=Tone: Dolby (cassette only) and audio adjustments. Select: Choose between station search methods (a,m or scan). FAST FORWARD/REVERSE / STATION SEARCH MENU = Returns display to main menu
Wide Screen Board Monitor Interface

1/min x 1000

ELECTRONIC

DIAGNOSIS BUS

OIL SERVICE INSPECTION

123456

+72 0F

READOUT

PRND SM 54321

StarTAC

Telephone PSE Box

SRS AIRBAG

MFL-CM

AMPLIFIER

AUDIO SIGNALS FOR AMPLIFICATION

LCM III

INFO 6 AM MENU 13.07.2000 Thursday TONE SELECT
CD PLAYER AUDIO SIGNALS NAVIGATION AUDIO SIGNALS

3 FM MODE

TAPE PLAYER AUDIO SIGNALS RED SIGNAL GREEN SIGNAL

BLUE SIGNAL

GPS ANTENNA

GPS NAVIGATION SYSTEM

REVERSE SIGNAL FROM LCM
DSC (processed left front wheel speed signal)
Example of E38/E39 with Wide Screen Board Monitor

Principle of Operation

The on-board monitor is an input and display device that performs no internal calculations. Inputs from the control panel buttons and knobs are converted into I-bus (K-bus E46) signals by the BM control panel. All of the devices controlled by the BM are connected to the I/K bus interface. The navigation computer contains the graphics stage integrated into the navigation computer housing. Request for on-board monitor displays are made to the navigation computer via the I/K bus. The navigation computer generates the RGB video signals and transmits them via 3 shielded wires. Audio signals generated by the cassette drive are sent via traditional audio wires (4) to the radio (located in the trunk or cargo area) for output to the audio system amplifier.

Workshop Hints

Service mode Access for the radio, on-board monitor and navigation service modes is available through the on-board monitor screen. To enter the radio service mode: Turn the ignition key to position 1 (KLR). Turn the radio on, then off, then on again. Press the INFO button. From the selection list choose RDS. Press and hold the on-board monitor control knob for at least 8 seconds. The audio display window will show the radio serial number as the first display. The station search < > buttons are used to scroll through the various settings. Turn off the radio to set any changes made.
Note: See the NG Radios module for a list of the tests and settings available in the radio service mode.
INFO 6 AM MENU 11.13.2000 Thursday INFO PTY RDS

FM MODE

enter the On-Board Monitor and Navigation Service Mode: Turn the ignition key to position 1 (KL R). From the Menu screen select SET. Once in the Set screen, press and hold the MENU button for 8 seconds. The Service Mode menu will appear on the display. Select On-board monitor for monitor specific tests.
6 AM SET Language Distance Consumpt. Temp. Clock USA km 1/100km C 24h E miles mpg F 12h mm/dd off SW 3-1/20

INFO 3 FM MODE

SERVICE MODE
On-board monitor NAVIGATION/GRAPHIC ELEMENT Video Module GPS Sensor check Telematics

km/l set set

dd.mm Date on Audio+OBC 11.13.2000 Thursday
Press and hold for 8 seconds after entering the SET screen.
Service Mode main menu display
INFO 3 FM MODE 6 AM ON-BOARD MONITOR VERSION Sw level Hw level: Diag. Index: Bus index: Encoding index: Supplier Return 11.13.2000 Thursday return Version Key function Brightness

Functions

Tests and adjustments available for the on-board monitor are: Version Information Key Function (button and rotary knob test) Brightness (Screen brightness adjustment)

Diagnosis

Fault driven diagnosis is possible using the DIS/MoDiC Diagnosis Program. The Diagnosis Program features: Identification Read/Clear fault memory Diagnosis requests Fault driven test modules. (E46 concept)

DIS BMW

BMW DIS
Mk-1 NAVIGATION SYSTEM Model: E38, E39 Production Date: 10/96 to 9/97
Objectives After completing this module you should be able to: Understand the principles of GPS Navigation. List the components used in the Mk-1 system. Recognize the reasons that would require a system calibration.

GPS - NAVIGATION SYSTEM

GLOBAL POSITIONING SYSTEM (GPS)
The BMW Navigation system operates in conjunction with the Global Positioning System (GPS). Utilization of the GPS improves the accuracy and provides redundancy for the Navigation system which also incorporates a dead reckoning system. The GPS was designed by the US Government in the 1970s for military purposes. In recent years it has been made available for civilian use.
There are 24 satellites equally divided among six orbits that are positioned 11,000 miles out in space. Each satellite continuously emits a radio signal. The signals contain short information messages including: 24 The exact time the message was broadcast. Current latitude and longitude positions relative to the orbit.

Each two wire link is similar to the CAN line signal but unidirectional. When a data burst is transmitted it is mirrored on the other wire as a self check of the data transmission. The GPS receiver module is provided KL 30 to maintain vehicle position in memory. When KL R is switched on the receiver module resumes monitoring the satellite radio signals picked up from the GPS aerial. The link to the GPS antennal is a gold plated coaxial connector.
MAGNETIC FIELD SENSOR In addition to the vehicles current position, the navigation computer also needs a direction of travel input. The magnetic field sensor is used for this purpose. The sensor consists of a ferromagnetic ring with two coils of wire placed 90O apart. Signals from the two coils become the vehicles directional input when the navigation system is in operation.
SENSOR OPERATION The sensor receives its operating power and ground from the navigation computer. When the system is switched on, magnetic fields are induced into the coils. The coils produce a voltage signal that is input to the navigation computer. As the vehicle turns to the left or right, the earths magnetic field influences the coils magnetic fields causing them to increase and decrease. The changing strength of the magnetic fields causes the voltage signal induced in the coils to increase and decrease linearly. This creates a changing voltage drop at the monitor in the navigation computer. The navigation computer determines the direction of travel of the vehicle by plotting the simultaneously changing voltage signals. 28
FRONT WHEEL SPEED SENSORS The navigation computer is provided with the front wheel speed signals to track the vehicle speed/distance and turning.
REVERSE GEAR SELECTED The nav. computer receives a 12 volt signal from the LCM when the back up lights are illuminated. This signal informs the nav. computer that the vehicle is being driven in reverse. REAR WINDOW DEFROSTER ON SIGNAL When the rear window defroster is switched on the nav. computer is informed via the vehicle bus system: IHKA to the IKE (Kbus) IKE to video module (Ibus) Video module to the nav. computer (ARCNET)
When the nav. computer receives the signal, it compensates for the magnetic influence from the rear defroster. This compensation is derived from the dealership calibration procedure.

Changing these settings is not required unless a new Navigation computer is installed in the vehicle. If a new nav computer is being calibrated for the first time, enter the vehicle type. NOTE: These settings should be checked as part of the troubleshooting procedures to verify that they are correct. If the displayed setting does not match the figures above, momentarily select another vehicle type and switch back to the correct vehicle. The track width value will change to the displayed values as shown above. AFTERMARKET WHEELS OR SUSPENSION MODIFICATIONS: If the vehicle is equipped with aftermarket wheels or has modified suspension components, the track width may need to be manually adjusted. Do the following to obtain this figure: 1. With the vehicle on the ground (suspension loaded), measure the distance between the two front rims (inner rim tire bead lips) in millimeters and note the measurement. 2. Measure the thickness of one front rim (inside lip to outside lip) using calipers and note the measurement. 3. Add these two figures together. The total is the measured track width. Turn the rotary knob to the vehicle type. Then turn the knob one click to the LEFT to access the track measurement. Turn the knob to enter the value manually. Press knob when finished.

2. SENSOR TEST

The Sensor Test performs a functional check of the wheel speed sensors and magnetic field sensor inputs to the navigation computer. This test must be carried out if the navigation computer is replaced. The DIS will also call for this test to be carried out as part of the troubleshooting procedures.
The test requires driving the vehicle in a tight circle at a speed of 6 MPH or less. If there are no faults with the inputs, the system will display Calibration Successful. At this point the calibration procedures can be continued or the vehicle can be returned to the workshop to continue the diagnostic procedures.

3. WHEEL SENSOR

This procedure is necessary when the navigation computer or wheel/tires have been changed. The procedure calibrates the wheel circumference/speed sensor input to the navigation computer so that the distance traveled input is correct. The tire inflation pressure must be checked and correctly set prior to carrying out this test. NOTE: The screen instructions will indicate a 4 and 6 meter distance in this procedure. Field testing has proven that a distance of 8 meters provides a more precise wheel sensor calibration. 1. Make sure the front wheels are facing forward. Place the angle iron against the back side of the rear tires.
2. Mark the road with the chalk where the angle iron contacts the road. This is your starting point. 3. Using a metric tape measure, measure out 4 and 8 meters from the starting point 4. Mark the distance on the road surface at four (4) meters. 5. Mark the distance on the road surface at eight (8) meters. 42

6. Press the start function on the On-board monitor. 7. Drive the vehicle slow and continuously forward (dont stop) until the rear tires are between the 4 and 8 meter marks (go as close to the 8 meter mark as possible) and
stop. 8. Press the stop button on the monitor. Set the parking brake. 9. Place the angle iron up against the rear of the back tires again and mark the ground with the chalk. 10 Precisely measure the distance from the starting point to the end point (tolerance < 1cm) and input this value using the rotary knob. Then press continue. Drive the vehicle to the known minimum 100 meter street or area. Press the start button by driving the vehicle straight ahead for a distance of at least 100 meters. The vehicle speed must also be < 40 KMH and the steering wheel must be held straight. Once you have travelled at least 100 meters stop the vehicle and press stop. The monitor screen will display the calibration has successfully completed.
3. COMPASS (MAGNETIC FIELD SENSOR CALIBRATION)
The magnetic field sensor must be calibrated if: The field sensor is replaced The navigation computer is replaced
The rear window with the heating grid is replaced Body work (welding, reconstruction)
Calibration of the field sensor is a three step process that includes: COMPASS STEP 1. Allowing the sensor to read all directions of travel. This is carried out in one of two different methods; Driving the vehicle in several tight circles, or Driving several times around a block (city block, block of houses)
One of these methods must be selected on the monitor before beginning.
Preferred Method- CIRCLE Driving the vehicle two complete circles - both counterclockwise and clockwise - will cover all directions. Press Start, the speed of the vehicle must not exceed 6 MPH during the calibration. Press Stop when you have completed. The monitor will indicate that the navigation computer has seen all directions of travel by displaying Calibration Successful.
Alternate Method - BLOCK Driving the vehicle around a block several times will also allow the navigation computer to see all directions of travel. The monitor will automatically indicate when this section of the calibration is completed. 45
COMPASS STEP 2. Calibration of the magnetic field sensor input to the navigation computer. This procedure is only possible after STEP 1 has been completed. Step 2 is carried out in one of three different methods; Calibration using a digitized address. Calibration using the GPS satellite signals. Angular calibration using the direction of a long section of road.
Preferred Method - DIGITIZED ADDRESS This procedure can only be used within a fully digitized CD map area. The actual location is entered into the on-board monitor and the navigation system will display a route between two road intersections, along which the vehicle must be driven.

Navigation system (NAV) Part number: 128 Hardware number: 40 Software number 47 Diagnosis index: 01 Coding index: 00 Bus index: 05 Production date 16/96 Supplier: Philips
The On Board Monitor system must be fully functional before any visual displays, inputs or programming can be carried out. The Video Module must be fully functional before any graphical displays can be transmitted to the Monitor unit. The Navigation Computer must be fully functional before any programmed destinations can be called up for display and directions.
CONTROL MODULE ID: NAV COMPUTER
In all cases fault troubleshooting should begin with the Fault Symptom troubleshooting paths provided by the DIS. In the case of positioning errors or faults with the Navigation System, the DIS will request a Sensor Test be performed prior to carrying out the diagnosis. This test procedure is outlined in the calibration procedures.
The navigation system diagnostic software has a SELECTION screen that is unique to any previous system. The choice, 1 - Start diagnosis again, means to start the diagnostic session (either the first time or restart a fresh diagnostic session.)
1 Start diagnosis again 2 Sensor test has already been carried out, reassume diagnosis.
2- Sensor test has already been carried out, reassume diagnosis., means to resume the diagnostic session. This selection is used when you have first started a session and the instructions on the DIS screen request that you disconnect the vehicle and bring it outside for a sensor check or another field test of some type as described in the diagnostic pages. When you return to the DIS, Select #2 to resume the diagnostic session started previously.
The Navigation Service Functions contains calibration data screens to review the vehicles present state of calibration (calibration status list). The calibration data (#2) is set up for E38 vehicles only at the time of navigation system introduction. Calibration data of wheel-sensor calibration provides a printout page of the vehicles actual distance to wheel sensor pulse. This screen will prove helpful when dealing with the technical hotline if additional data is requested from them on wheel sensor calibration data values.
1 Test code 2 Calibration data 3 Calibration data of wheel-sensor calibration
NAVIGATION COMPUTER FLASH CODES
The ON LED of the navigation computer automatically provides flash codes for when a fault is present. Single Flash = Internal control module fault. Triple Flash = ARCNET data link problem (open, short).
MK-2 NAVIGATION SYSTEM Model: E38, E39, E53, E46 Production Date: From 9/97 to 9/00.

MARK II NAVIGATION COMPUTER
Though the front bezel is identical to Nav computer of Mark I system, the Mark II Navigation computer is an different new component. Standardized ELO connectors replace the blade type connectors of the Mark I system. This ensures circuit integrity and allows simplified 26 pin breakout box connection for diagnostic purposes. The expanded capabilities of the Mark II Nav computer has made it possible to delete the following required connectors of the Mark I system: the magnetic field sensor input connector, the ARCNET triaxial connector, the 3 amp fuse has also been deleted.

GYRO LOCATION

ELO MAG FIELD SENSOR CONNECTOR

ARCNET CONNECTOR

3 AMP FUSE
INTEGRAL ELECTRONIC PIEZO GYRO SENSOR The nav computer contains an electronic gyro sensor that detects changes in the vehicles driven direction (changes in vehicle yaw). Similar to the Rotation Rate Sensor of the DSC III system, the gyro sensor measures the motion of the vehicle on its vertical axis. This is an internal component of the Nav Computer. It is not serviceable nor does it require calibration.
Do not open the Nav computer, this will void its warranty. Photo is only intended to provide functional understanding The gyro sensor provides status of vehicle turning maneuvers in the form of a changing voltage signal that the Nav computer uses as an input signal. The Nav computer requires the gyro sensors input signal along with the digitized map CD, the vehicle speed signal, and the GPS signals together to calculate, continually update and display the exact vehicle position on the LCD. 56
Gyro Sensor Operation: The internal control electronics of the sensor maintain a constant set frequency which is applied to the oscillation elements causing a calculated vibration to occur. The frequency is also simultaneously monitored by the phase detector. The vibration passes up to the pick-up elements of the tuning fork causing them to vibrate and be suspended in a free floating state, easily influenced by rotational movement.
When the vehicle turns, the free-floating upper ends of the tuning fork flex. This generates a millivoltage signal proportional to the turn. The signal amplifier receives the signal and passes it on to the phase detector which compares it to the original set frequency. The phase detector determines what direction the vehicle has turned and passes the result on to the frequency filter. Since the piezo gyro sensor is also picking up other vibrational movements in the vehicle, the frequency filter isolates the pertinent yaw signals and provides a DC voltage signal proportional to the left/right turning movement of the vehicle. 57

The first screen to appear is the SERVICE MODE menu. The On-board monitor and Video module selections are not functional even though they are displayed. The first accessible function is the NAVI/GRAPHIC ELEMENT. This screen is for identification of hardware/ software specific index versions for the installed system. The next available selection from the service mode menu is GPS. Pressing GPS brings up the GPS version display. This display provides the GPS receiver module hardware version number and date of programmed software. Pressing the functions button in the lower right corner of this screen provides a sub-selection menu of additional GPS system status. 60
The sub-selection menu additionally includes GPS Status and Tracking choices. GPS Status provides information on the exact coordinates of the vehicle based on the calculations of the GPS receiver module. GPS Tracking provides information about the individual satellites currently sending signals to the GPS receiver module.
The next selection available from the SERVICE MODE menu is Sensor check which provides: Wheel speed input (only one wheel speed signal, displayed in the right side window), Total number of GPS satellites currently providing signals, What mode the GPS receiver module is currently in; (ie: Search) The Gyro status provides the millivoltage value the Nav computer is utilizing for the current vehicle position. This area also includes an icon representing what direction the vehicle is heading in. The direction status relates to what gear the vehicle is currently in (forward or reverse).
The last selection available in the Service Mode menu is the VIN entry display. The VIN is entered at the VPC when prepped prior to distribution. This is for the VIN display in the Emergency program if needed when calling the Cross Country Group Roadside Assistance Program. Additionally, if the vehicle is equipped with a Phase V phone the system will automatically utilize the entered VIN as follows. Similar to the previous phone system, the Phase V phone has the capability to contact Cross Country Group using the Assist or Emergency button from the Emergency or Telephone functions. Whats new for the Phase V system is the use of dual tone multi frequency (DTMF) signalling. DTMF signalling provides a download of the VIN, the telephone number of the Phase V phone and the vehicle coordinates when the assist button was pressed. This information is displayed on a computer screen of the Cross Country Group assist personnel prior to any verbal communication taking place. Through a data base, the VIN provides the Owners Name. This, in conjunction with the vehicle coordinates and the phone number provides the assist personnel with crucial preliminary information. When the call is patched in from the vehicle, the assist personnel can answer appropriately for an assist or emergency situation. This quick response with the owners pertinent information provides an added personnel touch and time savings in an emergency situation. The VIN is entered at the VPC for all vehicles (with or without a Phase V phone). If the VIN has been incorrectly entered it can be changed by turning and pressing the rotary knob when the correct letter or digit of the last seven character of the VIN is displayed.

Direction:

Check back up light signal input.
GPS Status Text Display 1. GPS fault 2. Reception Interference 3. No Almanac
4. Satellite search 5. Satellite contact 6. Position known
Description Problem with GPS system. Swap nav computer and or antenna from know good vehicle after checking GPS status display information Problem with GPS system. Same as above. No Data yet stored from satellites. The GPS almanac is a memory account of received satellite signals. If the vehicle battery has been disconnected or after replacing a nav computer it has an empty memory and requires satellite signals to become functional. After the nav computer receives battery voltage and ground, it must be left outside with an unobstructed sky above with the ignition switched to KL R for approximatly 15 minutes. GPS is currently searching for satellite signals. At least one satellite is found Vehicles Latitude and Longitude known. Navigation is possible.

Menu GPS/Status

Display G-speed Heading Rec status Pos-src PDOP HDOP VDOP CH PRN S/N Visible Sat Almanac
Explanation Relative speed over the ground Direction of travel Search/track/position receiver status Number of satellites available for analysis Accuracy of the calculated location <8=sufficient determinations of location <4=very good determinations of location Channel Satellite detection Better reception as the value increases Number of visible satellites, receivable Signals, depending on time of day/configuration Satellite database, loaded automatically after 15 minutes VIN (Automatically assigned during coding) Color code or text Telephone network/contract number Customer specific info On/off status Telematics services on/off status Logging off telematics services

GPS/Tracking info

Telematics
VIN Color GSM BMW info Emergency call out Initialization Logging off
PDOP HDOP VDOP S/N Gyro Dir
Position Dilution of Precision Horizontal Dilution of Precision Vertical Dilution of Precision Signal/noise relationship Piezo gyro sensor (in navigation computer) Direction of travel

Review Questions

1. List the most significant changes made to the Mk-2 navigation computer over the previous Mk-1. Describe the changes between Mk-2 and Mk-3.
2. How can the signal provided by the gyro sensor to the navigation computer be checked? 3. Describe how the display signals are transmitted from the navigation computer to the MIR and board monitor.

4. What step is necessary before loading the navigation computer operating software CD on a newly replaced Mk-3 navigation computer? Where can the software status be confirmed after it has been loaded?
5. How is the VIN entered into the Mk-2 or Mk-3 navigation computer?
6. Describe the situations that would require a full calibration be performed on a Mk-1 navigation computer. 7. How are the On-Board Monitor input signals (function requests) received by the Nav. computer, Radio, IKE, IHKA and Telephone?

Table of Contents WIDE SCREEN ON-BOARD MONITOR

Subject Page

Introduction.3 Component overview. 4 Principle of operation. 7 Workshop Hints.7 Review Questions. 9
Initial Print Date:10/03/00

Revision Date:9/30/00

WIDE SCREEN ON-BOARD MONITOR Model: E39,E38,E46,E53 Production Date: E38,E39 from 9/00 E53 from 1/01 E46 Cabrio from 3/01 all other E46 models from 9/01
Objectives After completing this module you should be able to: Describe the benefits of the wide screen monitor over the previous versions. Understand how to operate the wide screen monitor. Review the procedures to access the Service Modes.

Widescreen board monitor

Introduction
While the instrument cluster provides all of the important vehicle status information to the driver, the on-board monitor is designed as an additional display that can be viewed by both the driver and vehicle passengers. Information relating to the vehicle, navigation, audio system and telephone can be displayed and controlled from a central location. The wide screen on-board monitor replaces both the 5.5 versions in the E38 and E39, and the 5 board monitor from the E53 and E46. The wide screen display has a screen size of 6.5 and an aspect ratio (length:height) of 16:9. The benefits of the wide screen design are: Larger display area and higher resolution (400X234 pixels). Improved display screen technology (Ad-TFT LC). Bigger text size. Soft keys replace country specific audio function keys. Used for all board monitor applications in all markets reducing variants. Larger display area makes split screen and magnification features possible (future software enhancements).

Component Overview

The wide screen on-board monitor consists of: 1. Monitor housing with cassette drive 2. Display screen 3. On-board monitor control panel
Cassette Drive The cassette drive is located behind the on-board monitor screen. In order to access the cassette, press the eject button, the display screen tilts forward to uncover the cassette slot. The images will remain displayed on the screen. After pressing the eject button again or automatically after 15 seconds the display returns to its normal position (cassette must be completely inside or removed). The tilt mechanism for the display screen utilizes anti-trap, if the board monitor detects a sudden change in speed, the display will reverse direction.
Display Screen and Control Panel The display screen has a diagonal width of 6.5 and an aspect ratio of 16:9 compared to the previous monitors that had a ratio of 4:3. The new screen also uses a Ad-TFT display (Advanced Thin Film Transistor). This type of screen uses ambient light in addition to backlighting in order to illuminate the display. The advantage is a constant contrast and brightness level at all ambient lighting conditions. 6.5 INCH DISPLAY

16:9 ASPECT RATIO

INFO 3 FM MODE 6 AM
On-board computer DSP Code Set
GPS-Navigation Aux. Ventilation

TONE SELECT

Emergency Monitor off

11.13.2000 Thursday

PHOTOCELL SENSOR ON-BOARD MONITOR CONTROL RADIO CONTROL KNOB KNOB RADIO STATUS LED = Signal from radio via I/K bus. AUXILIARY FAN INDICATOR LED
INFO = Activates the soft key menu for RDS and PTY
1-6 BUTTONS = Audio presets and CD selection
AM/FM SELECTION MODE/DISPLAY = Mode selects between audio functions. Display alternates between radio display and other displays. BC,TEL,NAV etc.
TELEPHONE STATUS LEDs / EJECT = Tilts monitor to access cassette drive. TELEPHONE = Send/End button TAPE REVERSE/CLOCK = Clock: Pressing with key off displays time. Aux. ventilation can be switched by holding button longer. TONE/SELECT=Tone: Dolby (cassette only) and audio adjustments. Select: Choose between station search methods (a,m or scan). FAST FORWARD/REVERSE / STATION SEARCH MENU = Returns display to main menu
Wide Screen Board Monitor Interface

1/min x 1000

ELECTRONIC

DIAGNOSIS BUS

CHECK ENGINE

OIL SERVICE INSPECTION

123456

+72 0F

20 DIGIT READOUT

PRND SM 54321

StarTAC

Telephone PSE Box

SRS AIRBAG

MFL-CM

AMPLIFIER
AUDIO SIGNALS FOR AMPLIFICATION

LCM III

INFO 6 AM MENU 13.07.2000 Thursday TONE SELECT
CD PLAYER AUDIO SIGNALS NAVIGATION AUDIO SIGNALS

3 FM MODE

TAPE PLAYER AUDIO SIGNALS

RED SIGNAL GREEN SIGNAL

BLUE SIGNAL

GPS ANTENNA

GPS NAVIGATION SYSTEM

REVERSE SIGNAL FROM LCM

DSC (processed left front wheel speed signal)
Example of E38/E39 with Wide Screen Board Monitor
Principle of operation The on-board monitor is an input and display device that performs no internal calculations. Inputs from the control panel buttons and knobs are converted into I-bus (K-bus E46) signals by the BM control panel. All of the devices controlled by the BM are connected to the I/K bus interface. The navigation computer contains the graphics stage integrated into the navigation computer housing. Request for on-board monitor displays are made to the navigation computer via the I/K bus. The navigation computer generates the RGB video signals and transmits them via 3 shielded wires. Audio signals generated by the cassette drive are sent via traditional audio wires (4) to the radio (located in the trunk or cargo area) for output to the audio system amplifier.

Workshop Hints

Service mode Access for the radio, on-board monitor and navigation service modes is available through the on-board monitor screen. To enter the radio service mode: Turn the ignition key to position 1 (KLR). Turn the radio on, then off, then on again. Press the INFO button. From the selection list choose RDS. Press and hold the on-board monitor control knob for at least 8 seconds. The audio display window will show the radio serial number as the first display. The station search < > buttons are used to scroll through the various settings. Turn off the radio to set any changes made.
INFO 6 AM MENU 11.13.2000 Thursday INFO PTY RDS
Note: See the NG Radios module for a list of the tests and settings available in the radio service mode.

FM MODE

enter the On-Board Monitor and Navigation Service Mode: Turn the ignition key to position 1 (KL R). From the Menu screen select SET. Once in the Set screen, press and hold the MENU button for 8 seconds. The Service Mode menu will appear on the display. Select On-board monitor for monitor specific tests.
SET Language Distance Consumpt. Temp. Clock USA km 1/100km C 24h E miles mpg F 12h

SW 3-1/20

INFO 1 2

SERVICE MODE

On-board monitor NAVIGATION/GRAPHIC ELEMENT Video Module GPS Sensor check Telematics

km/l set set

dd.mm Date on Audio+OBC 11.13.2000 Thursday

mm/dd off

Press and hold for 8 seconds after entering the SET screen.
Service Mode main menu display
ON-BOARD MONITOR VERSION Sw level Hw level: Diag. Index: Bus index: Encoding index: Supplier Return 11.13.2000 Thursday return Version Key function Brightness

Functions

Tests and adjustments available for the on-board monitor are: Version Information Key Function (button and rotary knob test) Brightness (Screen brightness adjustment)
Diagnosis Fault driven diagnosis is possible using the DIS/MoDiC Diagnosis Program. The Diagnosis Program features: Identification Read/Clear fault memory Diagnosis requests Fault driven test modules. (E46 concept)

BMW DIS

Review Questions
1. Which component is responsible for providing the display signals to the wide screen onboard monitor?
2. How does the radio receive the control requests from the on-board monitor control panel?
3. What tests and adjustments are available in the service mode that are specific to the on-board monitor?